Maximum discharge along the river is currently at the reporting a streamflow rate of cfs. This is also the highest stage along the Grass River, with a gauge stage of ft at this location. This river is monitored from 1 different streamgauging stations along the Grass River, the highest being situated at an altitude of ft, the .

The Grass River is a 73-mile-long river located in Northern Michigan. Historically, the river played an important role in the logging industry and was used to transport logs downstream. Today, the river is primarily used for recreational purposes such as fishing, kayaking, and canoeing. The Grass River Watershed is home to several reservoirs and dams, including the Grass River Dam and the Alba Dam. These dams are used to maintain water levels and control flooding. The Grass River also serves as a source of irrigation for nearby farms and agricultural land. The hydrology of the river is heavily influenced by precipitation, with water levels fluctuating throughout the year. Overall, the Grass River is an important natural resource and provides significant ecological, recreational, and agricultural benefits to the surrounding area.